Can my cognitive score go down?

Every time you complete a training session, an assessment task measures your latest cognitive score. In your profile page seen by your connections, the system only displays your best cognitive score and never shows to your connections your evolution or your lowest score.

Nevertheless, every time you complete a training session, you see your current score and your best score so you can personally track your cognitive evolution. However on your profile page is seen by your connections, if your current score is higher than your best score, then your connections see your new score, otherwise, they keep seeing your best score.